21 C.F.R. § 558.198   Diclazuril.


Title 21 - Food and Drugs


Title 21: Food and Drugs
PART 558—NEW ANIMAL DRUGS FOR USE IN ANIMAL FEEDS
Subpart B—Specific New Animal Drugs for Use in Animal Feeds

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§ 558.198   Diclazuril.

(a) Specifications. Type A medicated article containing 0.2 percent diclazuril.

(b) Approvals. See No. 000061 in §510.600(c) of this chapter.

(c) Related tolerances. See §556.185 of this chapter.

(d) Conditions of use. (1) Chickens. For chickens it is used as follows:

 ----------------------------------------------------------------------------------------------------------------                                    Combination grams/       Diclazuril grams/ton                 ton            Indications for use        Limitations       Sponsor----------------------------------------------------------------------------------------------------------------(i) 0.91 (1 part per million       ....................  Broiler chickens: For    Feed continuously.      000061 (ppm)).                                                  the prevention of        Not for use in                                                          coccidiosis caused by    hens producing                                                          Eimeria tenella, E.      eggs for human                                                          necatrix, E.             food..                                                          acervulina, E.                                                          brunetti, E. mitis                                                          (mivati), and E.                                                          maxima. Because                                                          diclazuril is                                                          effective against E.                                                          maxima later in its                                                          life cycle,                                                          subclinical intestinal                                                          lesions may be present                                                          for a short time after                                                          infection. Diclazuril                                                          was shown in studies                                                          to reduce lesion                                                          scores and improve                                                          performance and health                                                          of birds challenged                                                          with E. maxima..(ii) 0.91 (1 ppm)................  Bacitracin methylene  Broiler chickens: As in  As in item (i) of       000061                                    disalicylate 4 to     item (i) of this         this table.                                    50.                   table; for increased     Bacitracin                                                          rate of weight gain      methylene                                                          and improved feed        disalicylate                                                          efficiency..             provided by                                                                                   046573..(iii) 0.91 (1 ppm)...............  Bacitracin methylene  Broiler chickens: As in  Feed continuously       000061                                    disalicylate 50       item (i) of this         as the sole ration                                    plus roxarsone 22.7   table; as an aid in      throughout growing                                    to 45.4.              the prevention of        period. Use as                                                          necrotic enteritis       sole source of                                                          caused or complicated    organic arsenic;                                                          by Clostridium spp. or   drug overdose or                                                          other organisms          lack of water may                                                          susceptible to           result in leg                                                          bacitracin; for          weakness. Not for                                                          increased rate of        use in hens                                                          weight gain, improved    producing eggs for                                                          feed efficiency, and     human consumption.                                                          improved pigmentation..  Withdraw 5 days                                                                                   before slaughter.                                                                                   Bacitracin                                                                                   methylene                                                                                   disalicylate and                                                                                   roxarsone provided                                                                                   by No. 046573 in                                                                                   § 510.600(c)                                                                                   of this chapter..(iv) 0.91 (1 ppm)................  Bacitracin methylene  Broiler chickens: As in  Feed continuously       000061                                    disalicylate 100 to   item (i) of this         as the sole ration                                    200 plus roxarsone    table; as an aid in      throughout growing                                    22.7 to 45.4.         the control of           period. Start at                                                          necrotic enteritis       first clinical                                                          caused or complicated    signs of disease;                                                          by Clostridium spp. or   vary dosage of                                                          other organisms          bacitracin based                                                          susceptible to           on severity of                                                          bacitracin; for          infection;                                                          increased rate of        administer                                                          weight gain, improved    continuously for 5                                                          feed efficiency, and     to 7 days or as                                                          improved pigmentation..  long as clinical                                                                                   signs persist,                                                                                   then reduce                                                                                   bacitracin to                                                                                   prevention level                                                                                   (50 grams per ton                                                                                   (g/ton). Use as                                                                                   sole source of                                                                                   organic arsenic;                                                                                   drug overdose or                                                                                   lack of water may                                                                                   result in leg                                                                                   weakness. Not for                                                                                   use in hens                                                                                   producing eggs for                                                                                   human consumption.                                                                                   Withdraw 5 days                                                                                   before slaughter.                                                                                   Bacitracin                                                                                   methylene                                                                                   disalicylate and                                                                                   roxarsone provided                                                                                   by No. 046573 in                                                                                   § 510.600(c)                                                                                   of this chapter..(v) 0.91 (1 ppm).................  Bambermycins 1 to 2.  Broiler chickens: As in  As in item (i) of       000061                                                          item (i) of this         this table.                                                          table); for increased    Bambermycins                                                          rate of weight gain      provided by                                                          and improved feed        057926..                                                          efficiency..(vi) 0.91(1 ppm).................  Roxarsone 22.7 to     Broiler chickens: As in  Feed continuously       046573                                    45.4.                 item (i) of this         as the sole ration                                                          table; for increased     throughout growing                                                          rate of weight gain,     period. Use as                                                          improved feed            sole source of                                                          efficiency, and          organic arsenic;                                                          improved pigmentation..  drug overdose or                                                                                   lack of water may                                                                                   result in leg                                                                                   weakness. Not for                                                                                   use in hens                                                                                   producing eggs for                                                                                   human consumption.                                                                                   Withdraw 5 days                                                                                   before slaughter..                                                                                  Roxarsone provided                                                                                   by No. 046573 in                                                                                   § 510.600(c)                                                                                   of this chapter..(vii) 0.91 (1 ppm)...............  Virginiamycin 5.....  Broiler chickens: As in  As in item (i) of       000061                                                          item (i) of this         this table;                                                          table; for increased     Virginiamycin                                                          rate of weight gain      provided by                                                          and improved feed        066104..                                                          efficiency..(viii) 0.91 (1 ppm)..............  Virginiamycin 5 to    Broiler chickens: As in  As in item (i) of       000061                                    15.                   item (i) of this         this table.                                                          table; for increased     Virginiamycin                                                          rate of weight gain..    provided by                                                                                   066104..----------------------------------------------------------------------------------------------------------------

(2) Turkeys. For turkeys it is used as follows:

 ----------------------------------------------------------------------------------------------------------------                                    Combination grams/       Diclazuril grams/ton                 ton            Indications for use        Limitations       Sponsor----------------------------------------------------------------------------------------------------------------(i) 0.91 (1 ppm).................  ....................  Growing turkeys: For     Feed continuously       000061                                                          the prevention of        as the sole                                                          coccidiosis caused by    ration. Do not                                                          E. adenoeides, E.        feed to breeding                                                          gallopavonis and E.      turkeys. Not for                                                          meleagrimitis..          use in hens                                                                                   producing eggs for                                                                                   human consumption..(ii) 0.91 (1 ppm)................  Bacitracin methylene  Growing turkeys: As in   As in paragraph         000061                                    disalicylate 4 to     paragraph (d)(2)(i) of   (d)(2)(i) of this                                    50..                  this section; for        section.                                                          increased rate of        Bacitracin                                                          weight gain and          methylene                                                          improved feed            disalicylate                                                          efficiency..             provided by No.                                                                                   046573 in §                                                                                   510.600(c) of this                                                                                   chapter..(iii) 0.91 (1 ppm)...............  Bambermycins 1 to 2.  Growing turkeys: As in   As in paragraph         000061                                                          paragraph (d)(2)(i) of   (d)(2)(i) of this                                                          this section; for        section.                                                          improved feed            Bambermycins                                                          efficiency..             provided by No.                                                                                   057926 in §                                                                                   510.600(c) of this                                                                                   chapter..(iv) 0.91 (1 ppm)................  Bambermycins 2......  Growing turkeys: As in   As in paragraph         000061                                                          paragraph (d)(2)(i) of   (d)(2)(i) of this                                                          this section; for        section.                                                          increased rate of        Bambermycins                                                          weight gain and          provided by No.                                                          improved feed            057926 in §                                                          efficiency..             510.600(c) of this                                                                                   chapter..----------------------------------------------------------------------------------------------------------------

[64 FR 35923, July 2, 1999, as amended at 65 FR 50134, Aug. 17, 2000; 66 FR 47962, 47963, Sept. 17, 2001; 66 FR 62917, Dec. 4, 2001; 67 FR 34830, May 16, 2002; 67 FR 47257, July 18, 2002; 67 FR 48549, July 25, 2002; 69 FR 9947, Mar. 3, 2004]

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